of his Suffrage Interviews project, titled Oral evidence on the suffragette and suffragist movements: the Brian Harrison interviews. There is a 3 part interview from January 1977 and a single interview from August 1979. The interviews include reflections on their home, Mud House, and on Ray's relationships with her husband, mother and sister-in-law, Pippa.

Ray and Oliver's niece, Ursula Margaret Wentzel, née Strachey (Ursula's Father, Ralph, was Oliver's brother) was interviewed about Ray (and Pippa) in March 1977 and talks about Ray's